40/1000 x 2/1 + ( 25 + 1/26) – 0.008 = bn ạ

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1. Giải thích các bước giải:

    `40/1000×2/1+(25+1/26)-0,008`

   `=0,04×2+25+1/26-0,008`

   `=0,08+25+1/26-0,008`

   `=25,072+1/26`

   `=651872/26000+1000/26000`

   `=652872/26000`

   `=81609/3250`

   `≈25,1`

   Học tốt!!!

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2. `40/1000 × 2/1 + (25 + 1/26) – 0,008`

   = 1/25 × 2 + 651/26 – 1/125

   `= 2/25 + 651/26 – 1/125`

   `= 16327/650 – 1/25`

   `= 16301/650`

   Vậy `40/1000 × 2/1 + (25 + 1/26) – 0,008 = 16301/650`

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